Integrand size = 16, antiderivative size = 63 \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=\frac {3}{2} \sqrt {x} \sqrt {2-b x}+\frac {1}{2} \sqrt {x} (2-b x)^{3/2}+\frac {3 \arcsin \left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{\sqrt {b}} \]
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Time = 0.01 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.188, Rules used = {52, 56, 222} \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=\frac {3 \arcsin \left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{\sqrt {b}}+\frac {1}{2} \sqrt {x} (2-b x)^{3/2}+\frac {3}{2} \sqrt {x} \sqrt {2-b x} \]
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Rule 52
Rule 56
Rule 222
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \sqrt {x} (2-b x)^{3/2}+\frac {3}{2} \int \frac {\sqrt {2-b x}}{\sqrt {x}} \, dx \\ & = \frac {3}{2} \sqrt {x} \sqrt {2-b x}+\frac {1}{2} \sqrt {x} (2-b x)^{3/2}+\frac {3}{2} \int \frac {1}{\sqrt {x} \sqrt {2-b x}} \, dx \\ & = \frac {3}{2} \sqrt {x} \sqrt {2-b x}+\frac {1}{2} \sqrt {x} (2-b x)^{3/2}+3 \text {Subst}\left (\int \frac {1}{\sqrt {2-b x^2}} \, dx,x,\sqrt {x}\right ) \\ & = \frac {3}{2} \sqrt {x} \sqrt {2-b x}+\frac {1}{2} \sqrt {x} (2-b x)^{3/2}+\frac {3 \sin ^{-1}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}}\right )}{\sqrt {b}} \\ \end{align*}
Time = 0.17 (sec) , antiderivative size = 64, normalized size of antiderivative = 1.02 \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=-\frac {1}{2} \sqrt {x} \sqrt {2-b x} (-5+b x)-\frac {6 \arctan \left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {2}-\sqrt {2-b x}}\right )}{\sqrt {b}} \]
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Time = 0.08 (sec) , antiderivative size = 69, normalized size of antiderivative = 1.10
method | result | size |
meijerg | \(-\frac {3 \sqrt {-b}\, \left (\frac {4 \sqrt {\pi }\, \sqrt {x}\, \sqrt {2}\, \sqrt {-b}\, \left (-\frac {b x}{8}+\frac {5}{8}\right ) \sqrt {-\frac {b x}{2}+1}}{3}+\frac {\sqrt {\pi }\, \sqrt {-b}\, \arcsin \left (\frac {\sqrt {b}\, \sqrt {x}\, \sqrt {2}}{2}\right )}{\sqrt {b}}\right )}{\sqrt {\pi }\, b}\) | \(69\) |
default | \(\frac {\left (-b x +2\right )^{\frac {3}{2}} \sqrt {x}}{2}+\frac {3 \sqrt {x}\, \sqrt {-b x +2}}{2}+\frac {3 \sqrt {\left (-b x +2\right ) x}\, \arctan \left (\frac {\sqrt {b}\, \left (x -\frac {1}{b}\right )}{\sqrt {-b \,x^{2}+2 x}}\right )}{2 \sqrt {-b x +2}\, \sqrt {x}\, \sqrt {b}}\) | \(78\) |
risch | \(\frac {\left (b x -5\right ) \sqrt {x}\, \left (b x -2\right ) \sqrt {\left (-b x +2\right ) x}}{2 \sqrt {-x \left (b x -2\right )}\, \sqrt {-b x +2}}+\frac {3 \sqrt {\left (-b x +2\right ) x}\, \arctan \left (\frac {\sqrt {b}\, \left (x -\frac {1}{b}\right )}{\sqrt {-b \,x^{2}+2 x}}\right )}{2 \sqrt {-b x +2}\, \sqrt {x}\, \sqrt {b}}\) | \(95\) |
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Time = 0.23 (sec) , antiderivative size = 107, normalized size of antiderivative = 1.70 \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=\left [-\frac {{\left (b^{2} x - 5 \, b\right )} \sqrt {-b x + 2} \sqrt {x} + 3 \, \sqrt {-b} \log \left (-b x + \sqrt {-b x + 2} \sqrt {-b} \sqrt {x} + 1\right )}{2 \, b}, -\frac {{\left (b^{2} x - 5 \, b\right )} \sqrt {-b x + 2} \sqrt {x} + 6 \, \sqrt {b} \arctan \left (\frac {\sqrt {-b x + 2}}{\sqrt {b} \sqrt {x}}\right )}{2 \, b}\right ] \]
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Result contains complex when optimal does not.
Time = 2.03 (sec) , antiderivative size = 165, normalized size of antiderivative = 2.62 \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=\begin {cases} - \frac {i b^{2} x^{\frac {5}{2}}}{2 \sqrt {b x - 2}} + \frac {7 i b x^{\frac {3}{2}}}{2 \sqrt {b x - 2}} - \frac {5 i \sqrt {x}}{\sqrt {b x - 2}} - \frac {3 i \operatorname {acosh}{\left (\frac {\sqrt {2} \sqrt {b} \sqrt {x}}{2} \right )}}{\sqrt {b}} & \text {for}\: \left |{b x}\right | > 2 \\\frac {b^{2} x^{\frac {5}{2}}}{2 \sqrt {- b x + 2}} - \frac {7 b x^{\frac {3}{2}}}{2 \sqrt {- b x + 2}} + \frac {5 \sqrt {x}}{\sqrt {- b x + 2}} + \frac {3 \operatorname {asin}{\left (\frac {\sqrt {2} \sqrt {b} \sqrt {x}}{2} \right )}}{\sqrt {b}} & \text {otherwise} \end {cases} \]
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Time = 0.30 (sec) , antiderivative size = 79, normalized size of antiderivative = 1.25 \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=-\frac {3 \, \arctan \left (\frac {\sqrt {-b x + 2}}{\sqrt {b} \sqrt {x}}\right )}{\sqrt {b}} + \frac {\frac {3 \, \sqrt {-b x + 2} b}{\sqrt {x}} + \frac {5 \, {\left (-b x + 2\right )}^{\frac {3}{2}}}{x^{\frac {3}{2}}}}{b^{2} - \frac {2 \, {\left (b x - 2\right )} b}{x} + \frac {{\left (b x - 2\right )}^{2}}{x^{2}}} \]
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Time = 6.05 (sec) , antiderivative size = 83, normalized size of antiderivative = 1.32 \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=-\frac {{\left (\sqrt {{\left (b x - 2\right )} b + 2 \, b} \sqrt {-b x + 2} {\left (\frac {b x - 2}{b} - \frac {3}{b}\right )} - \frac {6 \, \log \left ({\left | -\sqrt {-b x + 2} \sqrt {-b} + \sqrt {{\left (b x - 2\right )} b + 2 \, b} \right |}\right )}{\sqrt {-b}}\right )} b}{2 \, {\left | b \right |}} \]
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Timed out. \[ \int \frac {(2-b x)^{3/2}}{\sqrt {x}} \, dx=\int \frac {{\left (2-b\,x\right )}^{3/2}}{\sqrt {x}} \,d x \]
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